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authorLinus Torvalds <torvalds@linux-foundation.org>2021-05-22 07:36:36 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-22 07:36:36 -1000
commitb9231dfbcbc0034cf333fee33c190853daee48c0 (patch)
treeded3678df0f581cb37349455fefdf78363abe056 /fs
parent23d729263037eddd7413535c68ccf9472a197ccd (diff)
parentba5ef6dc8a827a904794210a227cdb94828e8ae7 (diff)
Merge tag 'io_uring-5.13-2021-05-22' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe: "One fix for a regression with poll in this merge window, and another just hardens the io-wq exit path a bit" * tag 'io_uring-5.13-2021-05-22' of git://git.kernel.dk/linux-block: io_uring: fortify tctx/io_wq cleanup io_uring: don't modify req->poll for rw
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index e481ac8a757a..5f82954004f6 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5019,10 +5019,10 @@ static void __io_queue_proc(struct io_poll_iocb *poll, struct io_poll_table *pt,
* Can't handle multishot for double wait for now, turn it
* into one-shot mode.
*/
- if (!(req->poll.events & EPOLLONESHOT))
- req->poll.events |= EPOLLONESHOT;
+ if (!(poll_one->events & EPOLLONESHOT))
+ poll_one->events |= EPOLLONESHOT;
/* double add on the same waitqueue head, ignore */
- if (poll->head == head)
+ if (poll_one->head == head)
return;
poll = kmalloc(sizeof(*poll), GFP_ATOMIC);
if (!poll) {
@@ -9035,15 +9035,15 @@ static void io_uring_del_task_file(unsigned long index)
static void io_uring_clean_tctx(struct io_uring_task *tctx)
{
+ struct io_wq *wq = tctx->io_wq;
struct io_tctx_node *node;
unsigned long index;
+ tctx->io_wq = NULL;
xa_for_each(&tctx->xa, index, node)
io_uring_del_task_file(index);
- if (tctx->io_wq) {
- io_wq_put_and_exit(tctx->io_wq);
- tctx->io_wq = NULL;
- }
+ if (wq)
+ io_wq_put_and_exit(wq);
}
static s64 tctx_inflight(struct io_uring_task *tctx, bool tracked)

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